# A review: preprocessing techniques and data augmentation for sentiment analysis

> Research article (Computational Social Networks, 2021) · cited 140× · AI/ML

**Wikidata**: [openalex:W3165846270](https://www.wikidata.org/wiki/openalex:W3165846270)  
**Source**: https://4ort.xyz/entity/a-review-preprocessing-techniques-and-data-augmentation-for-sentiment-analysis